Please, don't ignore this, guys... I really need your help :(

This may be a bit longer, but I want to explain everything to you. Please, give me some advice, I feel like a total traitor and shit :tears:

Background to the story:
I fell in love with my classmate and a very good friend. We are a bunch of friends, all of us go to the same class. One of these friends, a girl, also fell in love with him. She even told me that, half a year ago. I liked him then, but it wasn't a strong crush and I didn't believe I could develop any stronger feelings for a boy at that time. But then we got drunk once and ended up kissing. This happened one more time and I am now seriously in love. The problem is, the girl, my friend, noticed it. She doesn't know anything about us two kissing and cuddling. We decided not to tell her, but our other friends know about it.

Now, we are not going out with this boy, I would like to, but he keeps saying that he is unsure of his feelings and all that crap. Honestly, I think he doesn't have these feelings for me that I do for him. But he is still a good friend and I didn't totally give up on him, because when he hugs me, he does it with a lot of passion or how to say this...


So, now to the actual problem:
The girl friend has become very annoying recently. She noticed I like him and now she won't leave us two alone for 5 seconds. Like when I want to speak to him, she immediately comes to us and sits with us, until I go away. Also, she tries to cut off the contact between us. When we were on a dinner outside (7 friends), she sat next to him, and she literally wanted him to sat in the corner, so I couldn't sit next to him from the other side. And this happens like every freakin' time. She tries to separate us really badly.

We are all in our graduation year on high school and we were supposed to pick a boy or two (since we have more boys in our class than girls) who we will be going to the opening ceremony at our graduation evening. It is like 20 seconds, that we will be together, nothing more, really. So, the boys stood in a row from the smallest to the highest and we should have picked up some. So I immediately went to him and our other male friend that stood right next to him and ask them to go with me. They said ok. But she is now really pissed on me I mean, I understand it completely, and I feel really bad for this, but on the other hand, I am pissed of her and her effort to separate us.

What should I do? Should I give her a chance to go with him? Like throwing a coin or something like that... If she won, I would be very jealous, but now I just feel bad I don't know what to do :icon_sad: Btw., she pretends that everything is perfectly fine...

 

Thank you, guys, for all you advices! (*hug*)

No, he doesn't like her. I know that because she once told me to ask him and he said he didn't like her.

As for me, I don't know... would you make out with someone you don't like in the slightest (I don't know if this is a proper usage of "make out", we didn't have sex)?